[QL-v3] Move quick launch v3 flag to AllAppsDeviceConfigFlag

Bug: 261629630
Test: manual
Change-Id: I5d553e727748591070e0015f6fec13d1765ff2c0
diff --git a/src/com/android/launcher3/config/FeatureFlags.java b/src/com/android/launcher3/config/FeatureFlags.java
index a24b30f..cfa44fa 100644
--- a/src/com/android/launcher3/config/FeatureFlags.java
+++ b/src/com/android/launcher3/config/FeatureFlags.java
@@ -305,9 +305,6 @@
             "FOLDABLE_WORKSPACE_REORDER", true,
             "In foldables, when reordering the icons and widgets, is now going to use both sides");
 
-    public static final BooleanFlag ENABLE_QUICK_LAUNCH_V3 = new DeviceFlag(
-            "ENABLE_QUICK_LAUNCH_V3", false, "Quick Launch V3");
-
     public static final BooleanFlag ENABLE_WIDGET_PICKER_DEPTH = new DeviceFlag(
             "ENABLE_WIDGET_PICKER_DEPTH", true, "Enable changing depth in widget picker.");